近期因为部署一个老系统，
测试安装了 php5.4和php7.0，和 nginx1.20.1
这个需要更新源，以这个为准
https://blog.csdn.net/zhezhebie/article/details/73325663
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install php70w-common php70w-fpm php70w-opcache php70w-gd php70w-mysqlnd php70w-mbstring php70w-pecl-redis php70w-pecl-memcached php70w-devel
yum install php70w-xml # 这步可省略，在php70里，发现已经安装
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这个源，也支持 php72的安装，只要把上面的后缀，改为 php72w 即可。
yum install php72w-common php72w-fpm php72w-opcache php72w-gd php72w-mysqlnd php72w-mbstring php72w-pecl-redis php72w-pecl-memcached php72w-devel
php -v // 查看版本
php -m // 查看扩展
yum install php # 如果不更改源，默认改为5.4版本。没有数据库支持和图片库（验证码显示）和zend opcache，需要另外安装
对于目录的缓存 ，需要配置权限 ，chmod -R 777 /usr/share/nginx/html
安装php5.4的mysql数据库
yum install php-mysqlnd
安装支持图片库，比如验证码图片显示
yum install php-gd
安装 php-fpm
yum install php-fpm
安装php的zend-opcache 缓存
yum install php-opcache
#以上为 php5.4的安装扩展
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systemctl start php-fpm
systemctl enable php-fpm
systemctl reload php-fpm
安装nginx
yum -y install nginx
安装完后，
/usr/sbin/nginx -t // 命令
/etc/nginx/nginx.conf // 配置文件
/usr/share/nginx // www目录
让niginx支持php，这段关键，需要注意
server { listen 80; listen [::]:80; server_name _; root /usr/share/nginx/html; location / { index index.php index.html index.htm; } # z这段关键,这段不完善，只是php结尾，需要用最后面下面的那段正则{php($|/)}
一个时正则表达式不正确，一个是缺少这段 fastcgi_split_path_info ^(.+\.php)(.*)$;_
location ~ \.php$ { # 另一种更全面的写法 ~\.php($|/),意思是 结尾.php或者 .php/ fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; }
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/application/config/config.php
$config['sess_save_path'] = NULL; 改为如下
$config['sess_save_path'] = FCPATH.'cache/sess_save_path';
部署成功的如下，包括分级目录，只要配一个，就ok，不用admin一个目录一个目录的配。这个为生产环境配置，可用。
如果部署不是默认目录，需要在location外也加上 root，地址，否则报找不到 文件的错误
https://www.cnblogs.com/houweijian/p/12467488.html
user www www; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; server { listen 80; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; root html; # 如果需要更换目录，这里需要改 会报找不到404错误。 location / { root html; #这里的目录与上面的一致 index index.html index.htm index.php; if ($request_filename !~ (\.js|js\/|\.css|css\/|admin|ckfinder|images|\.html)) { rewrite ^(.*)$ /index.php/$1 last; break; } } location /en { if ($request_filename !~ (js|css|images|admin|robots\.txt|index\.php)){ rewrite ^(.*)$ /en/index.php/$2 last; break; } } location ~\.php($|/) { # 后缀关键，~\ 之间无空格 fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_split_path_info ^(.+\.php)(.*)$; #关键，访问二级目录时必须 fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info; include fastcgi_params; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } }
php70安装后的 php -m
[root@centos79-test3 ~]# php -m [PHP Modules] bz2 calendar Core ctype curl date dom exif fileinfo filter ftp gd gettext gmp hash iconv igbinary json libxml mbstring memcached mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline redis Reflection session shmop SimpleXML sockets SPL sqlite3 standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter xsl Zend OPcache zip zlib [Zend Modules] Zend OPcache
php 5.4 安装后的 php -m ，只装php-fpm，不装其他扩展
[root@centos79-test ~]# php -m [PHP Modules] bz2 calendar Core ctype curl date ereg exif fileinfo filter ftp gettext gmp hash iconv json libxml mhash openssl pcntl pcre Phar readline Reflection session shmop SimpleXML sockets SPL standard tokenizer xml zip zlib [Zend Modules]
php5.4安装扩展后 ，gd ，mysql ，php-fpm，php-opcache
[root@centos79-test html]# php -m [PHP Modules] bz2 calendar Core ctype curl date ereg exif fileinfo filter ftp gd gettext gmp hash iconv json libxml mhash mysql mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar readline Reflection session shmop SimpleXML sockets SPL sqlite3 standard tokenizer xml zip zlib [Zend Modules]
Zend OPcache